250 hqi glows

[viperfish]

Take the bulb out of the side that isn't working and pop it in the side that is working, if it fires up then you need to replace the ballast. As far as the PC's go, they only provide supplemental light for the halides. If you use something in the bluer spectrum such as a Phoenix or Ushio 14K, you don't need actinics to compensate and still get good growth. It sounds like your fixture has seen better days and If it were me I would be shopping for a replacement.